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I always get cold when camping. I found a heated throw. I want to power it with an inverter connected to a good deep cycle battery. The heated throw use 115 watts... 120 volts ...60 hertz. How many hours or min can I have it on before the battery goes dead or gets too low? thank you.
- Marti (age 22)
Your battery will have a certain amount of stored energy, maybe say 800 Watt-hours if it's a good-sized lead-acid battery. That could power the throw for about 7 hours, assuming that the inverter was completely efficient. You can also put the inverter somewhere so that you pick up its waste heat too.
On a big truck, you might be able to carry a small efficient heat pump, which could get you about 5 W-h of heat for every W-h of battery energy, unlike your throw.
Overall, if you want to carry a lot of energy in a light-weight package, fuels are much better than batteries. Batteries of course are better for things where you specifically need electricity, but that doesn't include all heaters.
(published on 12/17/11)
Follow-Up #1: heat pump
thanks for the info.. never considered a sm heat pump
- marti (age 22)
(published on 12/18/11)
Follow-up on this answer.